could cluck
Verbo regular: cluck - clucked- clucked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could cluck
you could cluck
he could cluck
we could cluck
you could cluck
they could cluck 	I could be clucking
you could be clucking
he could be clucking
we could be clucking
you could be clucking
they could be clucking	I could have clucked
you could have clucked
he could have clucked
we could have clucked
you could have clucked
they could have clucked	I could have been clucking
you could have been clucking
he could have been clucking
we could have been clucking
you could have been clucking
they could have been clucking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't cluck
you couldn't cluck
he couldn't cluck
we couldn't cluck
you couldn't cluck
they couldn't cluck 	I couldn't be clucking
you couldn't be clucking
he couldn't be clucking
we couldn't be clucking
you couldn't be clucking
they couldn't be clucking	I couldn't have clucked
you couldn't have clucked
he couldn't have clucked
we couldn't have clucked
you couldn't have clucked
they couldn't have clucked	I couldn't have been clucking
you couldn't have been clucking
he couldn't have been clucking
we couldn't have been clucking
you couldn't have been clucking
they couldn't have been clucking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I cluck?
could you cluck?
could he cluck?
could we cluck?
could you cluck?
could they cluck? 	could I be clucking?
could you be clucking?
could he be clucking?
could we be clucking?
could you be clucking?
could they be clucking? 	could I have clucked?
could you have clucked?
could he have clucked?
could we have clucked?
could you have clucked?
could they have clucked? 	could I have been clucking?
could you have been clucking?
could he have been clucking?
could we have been clucking?
could you have been clucking?
could they have been clucking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I cluck?
couldn't you cluck?
couldn't he cluck?
couldn't we cluck?
couldn't you cluck?
couldn't they cluck? 	couldn't I be clucking?
couldn't you be clucking?
couldn't he be clucking?
couldn't we be clucking?
couldn't you be clucking?
couldn't they be clucking? 	couldn't I have clucked?
couldn't you have clucked?
couldn't he have clucked?
couldn't we have clucked?
couldn't you have clucked?
couldn't they have clucked? 	couldn't I have been clucking?
couldn't you have been clucking?
couldn't he have been clucking?
couldn't we have been clucking?
couldn't you have been clucking?
couldn't they have been clucking?